void zmq::tcp_listener_t::in_event ()
{
fd_t fd = accept ();
// If connection was reset by the peer in the meantime, just ignore it.
// TODO: Handle specific errors like ENFILE/EMFILE etc.
if (fd == retired_fd) {
_socket->event_accept_failed (
make_unconnected_bind_endpoint_pair (_endpoint), zmq_errno ());
return;
}
int rc = tune_tcp_socket (fd);
rc = rc
| tune_tcp_keepalives (
fd, options.tcp_keepalive, options.tcp_keepalive_cnt,
options.tcp_keepalive_idle, options.tcp_keepalive_intvl);
rc = rc | tune_tcp_maxrt (fd, options.tcp_maxrt);
if (rc != 0) {
_socket->event_accept_failed (
make_unconnected_bind_endpoint_pair (_endpoint), zmq_errno ());
return;
}
// Create the engine object for this connection.
create_engine (fd);
}
void zmq::tcp_listener_t::in_event ()
{
fd_t fd = accept ();
// If connection was reset by the peer in the meantime, just ignore it.
// TODO: Handle specific errors like ENFILE/EMFILE etc.
if (fd == retired_fd) {
socket->event_accept_failed (endpoint, zmq_errno());
return;
}
tune_tcp_socket (fd);
tune_tcp_keepalives (fd, options.tcp_keepalive, options.tcp_keepalive_cnt,
options.tcp_keepalive_idle, options.tcp_keepalive_intvl);
tune_tcp_maxrt (fd, options.tcp_maxrt);
// Create the engine object for this connection.
stream_engine_t *engine = new (std::nothrow)
stream_engine_t (fd, options, endpoint);
alloc_assert (engine);
// Choose I/O thread to run connecter in. Given that we are already
// running in an I/O thread, there must be at least one available.
io_thread_t *io_thread = choose_io_thread (options.affinity);
zmq_assert (io_thread);
// Create and launch a session object.
session_base_t *session = session_base_t::create (io_thread, false, socket,
options, NULL);
errno_assert (session);
session->inc_seqnum ();
launch_child (session);
send_attach (session, engine, false);
socket->event_accepted (endpoint, (int) fd);
}
bool zmq::tcp_connecter_t::tune_socket (const fd_t fd)
{
const int rc = tune_tcp_socket (fd)
| tune_tcp_keepalives (
fd, options.tcp_keepalive, options.tcp_keepalive_cnt,
options.tcp_keepalive_idle, options.tcp_keepalive_intvl)
| tune_tcp_maxrt (fd, options.tcp_maxrt);
return rc == 0;
}
void zmq::tcp_connecter_t::out_event ()
{
if (connect_timer_started) {
cancel_timer (connect_timer_id);
connect_timer_started = false;
}
rm_fd (handle);
handle_valid = false;
const fd_t fd = connect ();
// Handle the error condition by attempt to reconnect.
if (fd == retired_fd) {
close ();
add_reconnect_timer ();
return;
}
tune_tcp_socket (fd);
tune_tcp_keepalives (fd, options.tcp_keepalive, options.tcp_keepalive_cnt, options.tcp_keepalive_idle, options.tcp_keepalive_intvl);
tune_tcp_maxrt (fd, options.tcp_maxrt);
// remember our fd for ZMQ_SRCFD in messages
socket->set_fd (fd);
// Create the engine object for this connection.
stream_engine_t *engine = new (std::nothrow)
stream_engine_t (fd, options, endpoint);
alloc_assert (engine);
// Attach the engine to the corresponding session object.
send_attach (session, engine);
// Shut the connecter down.
terminate ();
socket->event_connected (endpoint, (int) fd);
}
